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Finding the Fourth Proportional to 5,381.00, 8,068.19 and 1,869.49

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Solution

The fourth proportional to 5,381.00, 8,068.19 and 1,869.49 is: 2,803.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381.00 : 8,068.19 = 1,869.49 : x
  2. Step 2: Convert to fraction form
    5,381.00/8,068.19 = 1,869.49/x
  3. Step 3: Cross multiply
    5,381.00x = 8,068.19 × 1,869.49
  4. Step 4: Simplify right side
    5,381.00x = 15,083,401.26
  5. Step 5: Solve for x
    x = 15,083,401.26/5,381.00
  6. Step 6: Final answer
    x = 2,803.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.